Introduction - If you have any usage issues, please Google them yourself
Computer for the two serial asynchronous communication between the research problem, using C language designed only RXD, RXD, GND three-wire serial communication procedures. The program through a reasonable set of initial state INS8250 port, the latter means the use of inquiry, the receiver interrupt the introduction of mechanisms to enable three-way communication to achieve, and a simple hardware connection, data transmission baud rate up to the maximum limit 115200bps.